Description
The RC5042 is a non-synchronous DC-DC controller IC which provides an accurate, programmable output for Pentium Pro CPU applications. Using an integrated 4-bit DAC to accept a voltage identification (VID) code directly from the CPU, the RC5042 can generate precise output voltages between 2.1V and 3.5V in 100mV increments. Output load currents in excess of 12A can be delivered using minimal external circuitry.

FEATUREs
• Programmable output from 2.1V to 3.5V using integrated 4-bit DAC
• 87% efficiency
• Oscillator frequency adjustable from 200KHz to 1MHz
• On-chip Power Good function
• Excellent transient response
• Over-Voltage Protection
• Short Circuit Protection
• Precision trimmed low TC voltage reference
• 16 pin SOIC package
• Meets Intel Pentium® Pro VRM specifications using minimum number of external components

APPLICATIONs
• Programmable power supply for Pentium Pro and Pentium-based CPU motherboards
• VRM module for Pentium Pro CPU
• Programmable power supply for high current microprocessors